After the recent update 7.6 my garmin fenix 5 changed the default from km to miles. just noticed that after the run that my distance was showing something strange but then i understood that those are miles. changed in settings myself from miles to km hopefully that will solve the problem but not good Garmin team for such a bug, good i was not on the race today just practise.
and the the Lactste Threshold was calculated automatically but now it says MANUAL ENTRY for some reason under Traning status. ?!